[2500 BULK] Square Nuts Steel Plain 5/16-18

Mutual ScrewSKU: 31NQPBB

Price:
Sale price$161.18per 2500( $0.06 each)
Pieces 2500
Measurement type Inch
Thread size 5/16-18
Material Steel
Finish Plain
Weight 27.0 lb

WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to https://www.P65Warnings.ca.gov.

Description

Enhance your hardware projects with Square Nuts Steel Plain 5/16-18. These square nuts deliver dependable strength and a simple, versatile finish—perfect for a wide range of machinery, automotive, and DIY applications that require a robust 5/16-18 UNC thread.

Product highlights

  • Material: Steel
  • Finish: Plain (unplated)
  • Nut style: Square
  • Thread size: 5/16-18 UNC
  • Compatibility: Designed to mate with 5/16-18 bolts and corresponding fasteners

Why choose square nuts?

Square nuts provide stable torque distribution, resist loosening in soft materials, and offer a larger threaded surface than hex nuts for many applications. The plain steel construction adds durability and value for everyday use.

Applications

  • Machinery assembly
  • Automotive maintenance and repairs
  • Woodworking and cabinetry projects
  • Industrial equipment and DIY projects

How to use

Pair these square nuts with matching 5/16-18 bolts. Start threading by hand to ensure alignment, then tighten with a compatible wrench or socket. Use washers if needed to distribute load and prevent damage to soft surfaces.

Plain steel finish is ideal for projects where plating is not required or where a surface will be finished after installation.

Can We Help?

If you’re not sure that this product is right for you, give us a call!
800-222-0324

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